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Abstract
On the basis of full investigation and repeated trials, nutritional soil composed of cake fertilizer, mushroom residue, cow dung and calcium magnesium phosphate fertilizer was determined as an alternative for traditional flue-cured tobacco fired ash soil. In accordance with the feed grinding, mixing and processing integrated principle, processing machine for flue-cured tobacco nutritional soil was developed. The clogging problem of mixing box was solved by improving grinding and stirring method of mixing system. Mechanized and large-scale production and commercialized supply of flue-cured tobacco nutritional soil was piloted to simplify the production process and reduce the production cost of nutritional soil for flue-cured tobacco and meet the needs of green development of tobacco production, thereby creating good social and economic benefits.